|
| "http://www.w3.org/TR/html4/loose.dtd"> PICKUP(8) PICKUP(8) NAME pickup - Postfix local mail pickup SYNOPSIS pickup [generic Postfix daemon options] DESCRIPTION The pickup daemon waits for hints that new mail has been dropped into the maildrop directory, and feeds it into the cleanup(8) daemon. Ill-formatted files are deleted with- out notifying the originator. This program expects to be run from the master(8) process manager. STANDARDS None. The pickup daemon does not interact with the outside world. SECURITY The pickup daemon is moderately security sensitive. It runs with fixed low privilege and can run in a chrooted environment. However, the program reads files from poten- tially hostile users. The pickup daemon opens no files for writing, is careful about what files it opens for reading, and does not actually touch any data that is sent to its public service endpoint. DIAGNOSTICS Problems and transactions are logged to syslogd(8). BUGS The pickup daemon copies mail from file to the cleanup(8) daemon. It could avoid message copying overhead by send- ing a file descriptor instead of file data, but then the already complex cleanup(8) daemon would have to deal with unfiltered user data. CONFIGURATION PARAMETERS As the pickup(8) daemon is a relatively long-running pro- cess, up to an hour may pass before a main.cf change takes effect. Use the command "postfix reload" command to speed up a change. The text below provides only a parameter summary. See postconf(5) for more details including examples. CONTENT INSPECTION CONTROLS content_filter (empty) The name of a mail delivery transport that filters mail after it is queued. receive_override_options (empty) Enable or disable recipient validation, built-in content filtering, or address rewriting. MISCELLANEOUS CONTROLS config_directory (see 'postconf -d' output) The default location of the Postfix main.cf and master.cf configuration files. daemon_timeout (18000s) How much time a Postfix daemon process may take to handle a request before it is terminated by a built-in watchdog timer. ipc_timeout (3600s) The time limit for sending or receiving information over an internal communication channel. line_length_limit (2048) Upon input, long lines are chopped up into pieces of at most this length; upon delivery, long lines are reconstructed. max_idle (100s) The maximum amount of time that an idle Postfix daemon process waits for the next service request before exiting. max_use (100) The maximal number of connection requests before a Postfix daemon process terminates. process_id (read-only) The process ID of a Postfix command or daemon pro- cess. process_name (read-only) The process name of a Postfix command or daemon process. queue_directory (see 'postconf -d' output) The location of the Postfix top-level queue direc- tory. syslog_facility (mail) The syslog facility of Postfix logging. syslog_name (postfix) The mail system name that is prepended to the pro- cess name in syslog records, so that "smtpd" becomes, for example, "postfix/smtpd". SEE ALSO cleanup(8), message canonicalization sendmail(1), Sendmail-compatible interface postdrop(1), mail posting agent postconf(5), configuration parameters master(8), process manager syslogd(8), system logging LICENSE The Secure Mailer license must be distributed with this software. AUTHOR(S) Wietse Venema IBM T.J. Watson Research P.O. Box 704 Yorktown Heights, NY 10598, USA PICKUP(8) |